- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 3/14 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
Patent holdings for IPC class C22B 3/14
Total number of patents in this class: 163
10-year publication summary
|
8
|
5
|
9
|
8
|
11
|
10
|
15
|
23
|
16
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Metaleach Limited | 14 |
9 |
| Sumitomo Metal Mining Co., Ltd. | 1974 |
7 |
| Stillwater Mining Company | 8 |
6 |
| Metals Technology Development Company LLC | 8 |
5 |
| Sichuan Juhong Technology Co., Ltd. | 8 |
5 |
| X-Energy, LLC. | 69 |
4 |
| Terralithium LLC | 57 |
4 |
| Chongqing Dongqun Technology Co., Ltd. | 5 |
4 |
| Avanti Materials Ltd | 9 |
4 |
| ENGITEC TECHNOLOGIES S.p.A. | 28 |
3 |
| Fundacion Tecnalia Research & Innovation | 226 |
3 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1265 |
3 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1226 |
3 |
| Metallic Waste Solutions Pty Ltd. | 4 |
3 |
| Renewable Metals Pty Ltd | 6 |
3 |
| Murata Manufacturing Co., Ltd. | 25744 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11123 |
2 |
| BHP Billiton Nickel West Pty Ltd | 3 |
2 |
| Commonwealth Scientific and Industrial Research Organisation | 1655 |
2 |
| Cytec Technology Corp. | 259 |
2 |
| Other owners | 87 |